5(1-3r)=-85

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Solution for 5(1-3r)=-85 equation: 


Simplifying
5(1 + -3r) = -85
(1 * 5 + -3r * 5) = -85
(5 + -15r) = -85

Solving
5 + -15r = -85

Solving for variable 'r'.

Move all terms containing r to the left, all other terms to the right.

Add '-5' to each side of the equation.
5 + -5 + -15r = -85 + -5

Combine like terms: 5 + -5 = 0
0 + -15r = -85 + -5
-15r = -85 + -5

Combine like terms: -85 + -5 = -90
-15r = -90

Divide each side by '-15'.
r = 6

Simplifying
r = 6

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